The Effects of Ibuprofen on the Physiology and Survival of Patients with Sepsis
Gordon R. Bernard, M.D., Arthur P. Wheeler, M.D., James A. Russell, M.D., Roland Schein, M.D., Warren R. Summer, M.D., Kenneth P. Steinberg, M.D., William J. Fulkerson, M.D., Patrick E. Wright, M.D., Brian W. Christman, M.D., William D. Dupont, Ph.D., Stanley B. Higgins, Ph.D., Bridget B. Swindell, R.N., for The Ibuprofen in Sepsis Study Group
Background In patients with sepsis the production of arachidonicacid metabolites by cyclooxygenase increases, but the pathophysiologicrole of these prostaglandins is unclear. In animal models, inhibitionof cyclooxygenase by treatment with ibuprofen before the onsetof sepsis reduces physiologic abnormalities and improves survival.In pilot studies of patients with sepsis, treatment with ibuprofenled to improvements in gas exchange and airway mechanics.
Methods From October 1989 to March 1995, we conducted a randomized,double-blind, placebo-controlled trial of intravenous ibuprofen(10 mg per kilogram of body weight [maximal dose, 800 mg], givenevery six hours for eight doses) in 455 patients who had sepsis,defined as fever, tachycardia, tachypnea, and acute failureof at least one organ system.
Results In the ibuprofen group, but not the placebo group, therewere significant declines in urinary levels of prostacyclinand thromboxane, temperature, heart rate, oxygen consumption,and lactic acidosis. With ibuprofen therapy there was no increasedincidence of renal dysfunction, gastrointestinal bleeding, orother adverse events. However, treatment with ibuprofen didnot reduce the incidence or duration of shock or the acute respiratorydistress syndrome and did not significantly improve the rateof survival at 30 days (mortality, 37 percent with ibuprofenvs. 40 percent with placebo).
Conclusions In patients with sepsis, treatment with ibuprofenreduces levels of prostacyclin and thromboxane and decreasesfever, tachycardia, oxygen consumption, and lactic acidosis,but it does not prevent the development of shock or the acuterespiratory distress syndrome and does not improve survival.
Source Information
From the Divisions of Pulmonary and Critical Care Medicine (G.R.B., A.P.W., B.W.C., B.B.S.), Biostatistics (W.D.D.), and Biomedical Engineering and Computing (S.B.H.), Vanderbilt University Medical Center, Nashville; the Program of Critical Care Medicine, Department of Medicine, St. Paul's Hospital and University of British Columbia, Vancouver, B.C., Canada (J.A.R.); the University of Miami School of Medicine and Department of Veterans Affairs Medical Center, Miami (R.S.); the Department of Pulmonary and Critical Care Medicine, Louisiana State University Medical Center, New Orleans (W.R.S.); the Division of Pulmonary and Critical Care Medicine, Harborview Medical Center, University of Washington, Seattle (K.P.S.); the Division of Pulmonary and Critical Care Medicine, Duke University Medical Center, Durham, N.C. (W.J.F.); and the Division of Pulmonary Medicine, Methodist Hospital, Indianapolis (P.E.W.).
Address reprint requests to Dr. Bernard at Rm. T-1217, Medical Center North, Vanderbilt University School of Medicine, Nashville, TN 37232.
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